Laravel 5.4 field doesn't have a default value

Question

I am having this error and none of the googled result i checked is similar to my problem.

I have an application with class Deal, User, and Matches

A deal has

Answer 1

I am using Laravel 8 and fixed this error thorugh this two steps:

1. move the word from $guarded array to $fillable array in User Mode

2. Config.database.php: 'strict' => false in the array of 'mysql'